Denis
added a comment - 07/May/11 2:12 PM There additionally seems to be a hard-coded limit to the size of the dump:
http://stackoverflow.com/questions/4363904/is-there-any-length-limitation-of-result-by-stats-cachedump-in-memcached
http://lists.danga.com/pipermail/memcached/2007-April/003906.html

Guilherme Blanco
added a comment - 18/Apr/11 11:24 AM Memcache daemon 1.4.5 do not provide cachedump and triggers a couple of issues all around.
Here is a link that gives more information: http://www.pecl.php.net/bugs/bug.php?id=20375&edit=3
We need to think on a workaround since current state of Doctrine 2 is unusable with recent memcache.